Measurement invariance (MI) is a psychometric property of an instrument indicating the degree to which scores from an instrument are comparable across groups. In recent years, there has been a marked uptick in publications using MI in intellectual and developmental disability (IDD) samples. Our goal here is to provide an overview of why MI is…

This review aimed to analyze the psychometric properties of standardized instruments that are used to measure pragmatic intervention effects in children with developmental language disorder. Following PRISMA structure, a comprehensive literature research was conducted in five electronic indexing databases: Central, PubMed, Medline, Web of Science…

Purpose: Wellbeing refers to a person's overall happiness and satisfaction with life. Wellbeing for people with Intellectual and Developmental Disabilities (I/DD) and their families is historically significantly lower compared to the general population. It is important in the context of behavioral health treatment to not only measure the…

Language sample analysis (LSA) represents a venerated and ecologically valid method for diagnosing, identifying goals, and measuring progress in children with developmental language disorder (DLD). With many LSA measures available, previous research offers limited guidance on which measures should be prioritized based on their robust reliability,…

The MABC-2 Checklist is a method designed preferentially for teachers and parents to evaluate how well a child performs movement skills within school, family and community settings. It serves as screening tool for the impact of motor skills deficits in children on activities of daily living, academic or school performance, leisure and play. This…

Effectiveness of motor interventions depends not only on learning content but also on the used teaching strategies. However, little is known regarding the application of teaching strategies in clinical practice. This study aimed to develop and assess psychometric properties of a new Dutch observational instrument to document teaching strategies:…

Although it is well-known that individuals with intellectual and developmental disabilities (IDD) are socially vulnerable, the field lacks valid assessments to identify risk factors for victimization. Parents/caregivers of 428 individuals with IDD (ages 12-53) completed the social vulnerability questionnaire (SVQ), a measure developed to assess…

Background: To encourage self-determination and address health disparities among persons with intellectual and developmental disabilities, clinicians and researchers rely on self-reported measures like health-related quality of life (HRQoL). This study evaluated the psychometric properties of a theory-driven self-reported HRQoL measure for adults…

Teachers are often mentioned among the key factors in the quality of the teaching process. This research aims to adapt to Serbian the Teacher Efficacy for Inclusive Practice (TEIP) Scale, and identify factors that correlate with high levels of perceived efficacy. A total of 288 teachers participated in the research. We conducted a factor analysis…

Background: School experience is an important part of the life of children with developmental disabilities (DD) and their families. Research suggests that parents of children vary in their level of satisfaction with their child's school, but methodology and results have varied and no consistent reliable measure of school satisfaction exists. This…

The Canadian Little Developmental Coordination Disorder Questionnaire (Little DCDQ-CA) is a parent-report screening instrument that identifies 3- to 4-year-old children who may be at risk for Developmental Coordination Disorder (DCD). We tested the criterion validity of the Little DCDQ-CA in a sample of preschool-aged children in the United States…

This study explores the psychometric properties of "Self-Determination Inventory: Student Report" (SDI:SR) in students with intellectual and developmental disabilities (IDD) and without disabilities in China. The paper-and-pencil version of SDI:SR Chinese Translation (SDI:SR Chinese) was used to explore self-determination across students…

Background: The Developmental Behaviour Checklist (DBC) is an established, internationally used questionnaire for assessing behavioural and emotional problems among young people with developmental or intellectual disabilities (ID). The present study aims to evaluate the psychometric properties of its German teacher version (DBC-T). Method: The…

Sensory processing abnormalities are frequently reported in individuals with autism spectrum disorder (ASD), but few studies have evaluated the utility of the measures used to evaluate sensory responses. A systematic literature review was conducted to identify current trends in sensory processing assessments. Across the 93 studies included in this…

The Behaviour Rating Inventory of Executive Function--Preschool Version (BRIEF-P) is a hand-storable instrument that permits evaluation of the executive functions in children between the ages of 2 years and 5 years 11 months by parents, teachers, or other usual child caregivers, thus facilitating early intervention. It is a standardized…